          route->offset
          route->adjust-window-offsets
          route->thumbnail-map
+         route->original-map
          route->thumbnail-auto-height-map
          route->options
          route-params->image-type

                                 request)))
        (GET thumbnail-route
             request
             (image-request-handler system :thumbnail request))
        (GET original-route
             request
             (image-request-handler system :original request))

        ; legacy routes
        (GET alr/thumbnail-route

(defn route->image-type
  [request-map]
  (assoc request-map :image-type (route-params->image-type request-map)))

(defn route->original-map
  [request-map request]
  (-> request-map
      (assoc :request-type :original)
      (route->image-type)
      (route->options request)))

(defn route->thumbnail-map
  [request-map request &[options]]
